body,
ul,
ol,
li,
p,
h1,
h2,
h3,
h4,
h5,
h6,
form,
fieldset,
table,
td,
img,
div {
  margin: 0;
  padding: 0;
  border: 0;
  box-sizing: border-box;
  user-select: none;
}
img{
  -webkit-user-drag: none;
}
body {
  font-size: 0.12rem;
  font-family: 微软雅黑, sans-serif;
  width: 100%;
  height: 100%;
  background: #ffffff;
}
ul,
ol {
  list-style-type: none;
}
select,
input,
img,
select {
  vertical-align: middle;
}
input {
  font-size: 0.12rem;
}
a {
  text-decoration: none;
  color: #000;
}
a:hover {
  color: #c00;
  text-decoration: none;
}
.clear {
  clear: both;
}
.f_l {
  float: left;
}
.f_r {
  float: right;
}
.activityStatement {
  text-align: center;
  display: none;
  font-size: 0.26rem;
  width: 7.5rem;
  height: 0.5rem;
  line-height: 0.5rem;
  position: fixed;
  color: #fff;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9999;
}
* {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-tap-highlight-color: transparent;
  touch-action: auto;
}
* {
  -webkit-touch-callout: text;
  -webkit-user-select: text;
  -khtml-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}
.flex {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
}

.flex-warp {
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.justify-content-center {
  -webkit-justify-content: center;
  justify-content: center;
}
.column_center {
  flex-direction: column;
  -webkit-flex-direction: column;
  -webkit-align-items: center;
  align-items: center;
}

.align-items-center {
  -webkit-align-items: center;
  align-items: center;
}

/* 文档容器样式 */
.doc-container {
  width: 100%;
  min-height: 100vh;
  background: #ffffff;
}

.doc-content {
  padding: 0.3rem;
  padding-bottom: 1rem;
}

/* 标题样式 */
.doc-title {
  text-align: center;
  width: 100%;
  font-size: 0.4rem;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #333333;
  line-height: 0.56rem;
  margin: 0.3rem 0;
}

.doc-subtitle {
  text-align: center;
  width: 100%;
  font-size: 0.32rem;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #333333;
  line-height: 0.45rem;
  margin: 0.2rem 0;
}

/* 内容样式 */
.doc-section {
  width: 100%;
  margin-top: 0.3rem;
}

.doc-section p {
  font-size: 0.28rem;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #333333;
  line-height: 0.45rem;
  text-align: justify;
}

.doc-section .p-title {
  font-weight: 600;
  margin-top: 0.3rem;
}

/* 导航页面样式 */
.nav-container {
  width: 100%;
  min-height: 100vh;
  background: #ffffff;
  padding: 0.3rem;
}

.nav-title {
  text-align: center;
  font-size: 0.48rem;
  font-weight: 600;
  color: #333333;
  margin: 1rem 0 0.8rem 0;
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin-bottom: 0.2rem;
  background: #f5f5f5;
  border-radius: 0.12rem;
  overflow: hidden;
}

.nav-link {
  display: block;
  padding: 0.3rem 0.4rem;
  font-size: 0.32rem;
  color: #333333;
  text-decoration: none;
  border-bottom: 1px solid #e0e0e0;
  transition: background-color 0.3s ease;
}

.nav-link:hover,
.nav-link:active {
  background: #e8e8e8;
}

.nav-link:last-child {
  border-bottom: none;
}

/* 返回按钮样式 */
.back-btn {
  position: fixed;
  top: 0.3rem;
  left: 0.3rem;
  width: 0.6rem;
  height: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  cursor: pointer;
  z-index: 1000;
}

.back-btn::before {
  content: '';
  display: block;
  width: 0.2rem;
  height: 0.2rem;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
  margin-left: 0.08rem;
}